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DISCRETE SEMICONDUCTORS
DATA SH EET
ook, halfpage
M3D109
BFQ540
NPN wideband dual transistor
Product specification
Supersedes data of 1995 Sep 04
File under Discrete Semiconductors, SC14
1998 Aug 27
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Philips Semiconductors Product specification
NPN wideband dual transistor BFQ540
FEATURES
• High gain
• High output voltage
DESCRIPTION
NPN wideband dual transistor in a
plastic SOT89 package.
age
• Low noise
• Gold metallization ensures
excellent reliability
• Low thermal resistance.
APPLICATIONS
PINNING
PIN DESCRIPTION
1 emitter
2 collector
3 base
123
Bottom view
MBK514
• VHF, UHF and CATV amplifiers.
Marking code: N4.
Fig.1 SOT89.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
CBO
V
CES
V
EBO
I
C
P
tot
h
FE
f
T
S
21
F noise figure I
collector-base voltage open emitter −−20 V
collector-emitter voltage RBE=0 −−15 V
collector-base voltage open collector −−2V
collector current (DC) −−120 mA
total power dissipation Ts≤ 60 °C; note 1 −−1.2 W
DC current gain IC= 40 mA; VCE=8V; Tj=25°C 60 120 250
transition frequency IC= 40 mA; VCE= 8 V; f = 1 GHz;
=25°C
T
amb
insertion power gain I
2
= 40 mA; VCE=8V;
C
f = 900 MHz; T
= 40 mA; VCE=8V;
C
amb
f = 900 MHz; ΓS= Γ
=25°C
opt
− 9 − GHz
12 13 − dB
− 1.9 2.4 dB
Note
1. T
is the temperature at the soldering point of the collector pin.
s
1998 Aug 27 2
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Philips Semiconductors Product specification
NPN wideband dual transistor BFQ540
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CBO
V
CES
V
EBO
I
C
P
tot
T
stg
T
j
THERMAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS VALUE UNIT
R
th j-s
collector-base voltage open emitter − 20 V
collector-emitter voltage RBE=0 − 15 V
emitter-base voltage open collector − 2V
collector current (DC) − 120 mA
total power dissipation Ts≤ 60 °C − 1.2 W
storage temperature −65 +150 °C
operating junction temperature − 175 °C
thermal resistance from junction
Ts≤ 60 °C; P
= 1.2 W 95 K/W
tot
to soldering point
1.4
P
tot
(W)
1.2
1.0
0.8
0.6
0.4
0.2
0
0 50 100 200
VCE≤ 9V.
Fig.2 Power derating curve.
150
Tj (
MBG241
o
C)
3
10
handbook, halfpage
I
C
(mA)
2
10
10
1
10 10
Fig.3 SOAR.
VCE (V)
MBG244
2
1998 Aug 27 3